#define _CRT_SECURE_NO_WARNINGS 1 
#include<stdio.h>
void Swap(int* x, int* y)
{
	int temp = *x;
	*x = *y;
	*y = temp;
}
int main()
{
	int a = 0;
	int b = 0;
	scanf("%d %d", &a, &b);

	Swap(&a, &b);
	printf("%d %d", a, b);

	return 0;
}